A straight razor is an old hobo trick used to snipe or if particularly cruel, to disfigure and terrorize someone as a social message to never F with the wielder again in the hobo jungle. If you were a vicious SOB and were looking to teach some punk a lesson...ok I guess. razor's are much too brittle though for a serious defensive weapon when there are much better alternatives. You can break a blade with your bare hands fairly easy. So up against hard materials, it doesn't take a genius to figure out, it is not that reliable. Always go with the most reliable weapon to defend yourself that you can get your hands on.

I used to carry a razor in my boot back in the olden days. They definitely had an intimidation factor but in real combat, the cutting edge always snapped off in the victims arm or wherever I would slash making it useless against multiple attackers. Plus if you get caught with one, it never looks good. A belt with a heavy buckle has always been a better choice and perfectly legal to carry. One on one, if you jab them directly in the eyeball with your thumb as hard as you can....fight's over immediately. I don't care if it's Lou Ferrigno on a 'roid rage it's over and you won